First Alert FA909 Wireless Nano Smoke Alarm

First Alert FA909 Wireless Nano Smoke AlarmSmall but mighty! First Alert Wireless Nano Smoke Alarm adopts highly sensitive standard EN14604 with ultra low power consumption yet high decibel buzzer. Once smoke reaches a certain density, alarm will sound. Comes with extra long battery lifespan of 10 years. Replacement of battery done only after 10 years after which unit is reusable. Winner of the Red dot design award 2017.Features:Easy installationHighly sensitive photoelectric sensorOperates even during power outageLow battery indicator alarmLous 85dB alarm when alarm soundCoverage range between 20m2 40m210 years long life lithium batterySensitivity standard : EN14604Technical SpecificationsModel NoFA909Product Dimension60 x 60 x 49.2mmVoltageDC3V (CR123A Lithium battery)Alarm Volume>85dB